Results 21 to 30 of about 5,526 (237)

Hierarchical Fibers with a Negative Poisson’s Ratio for Tougher Composites [PDF]

open access: yes, 2013
In this paper, a new kind of hierarchical tube with a negative Poisson’s ratio (NPR) is proposed. The first level tube is constructed by rolling up an auxetic hexagonal honeycomb.
Yongtao Sun   +7 more
core   +1 more source

Machine learning accelerated design of auxetic structures

open access: yesMaterials & Design, 2023
Auxetic metamaterials exhibit unusual expansion perpendicular to the direction of tensile loading, a behavior known as negative Poisson's ratio (NPR). The microstructures of auxetic metamaterials require rational design.
Menghuan Wang, Sheng Sun, Tong-Yi Zhang
doaj   +1 more source

Geometrical analysis of warp knit auxetic fabrics [PDF]

open access: yes, 2015
Despite considerable interests that have been shown on the formation, properties and characteristics of auxetic knit structures there remains a dearth of information about the fundamental geometrical analytics of warp knit auxetic fabrics.
Samuel, C Ugbolue   +2 more
core   +1 more source

Study of mechanical properties and enhancing auxetic mechanism of composite auxetic structures

open access: yesEngineering Reports, 2021
The auxetic structures attract much attention because of their good properties, such as enhanced energy absorption capacity and buckling resistance. It is an important topic to combine the auxetic structures with other materials or structures to improve ...
Zengqin Shi   +5 more
doaj   +1 more source

Development and Characterization of Re-Entrant Auxetic Fibrous Structures for Application in Ballistic Composites [PDF]

open access: yes, 2018
Auxetic fibrous structures and composites with negative Poisson’s ratio (NPR) have huge potential for application in ballistic protection due to their high energy absorption and excellent impact resistance.
Gonçalves, Clara   +11 more
core   +1 more source

Core Spun Based Helical Auxetic Yarn: A Novel Structure for Wearable Protective Textiles

open access: yesJournal of Natural Fibers, 2022
Textile auxetic materials with negative Poisson’s ratio (NPR) have potential applications in protective textile, filtration, and energy absorbance. However, cotton core-spun based auxetic textile is rarely investigated.
Bushra Mushtaq   +9 more
doaj   +1 more source

Engineering Auxetic Cylinders and Intestine to Improve Longitudinal Intestinal Lengthening and Tailoring Procedure

open access: yesBioengineering, 2022
Auxetic materials can be exploited for coupling different types of tissues. Herein, we designed a material where the microorganism metabolic activity yields the formation of buckled/collapsed bubbles within gelling silicone cylinders thus providing ...
Luca Valentini   +8 more
doaj   +1 more source

Molecular auxetic polymer of intrinsic microporosity via conformational switching of a cavitand crosslinker

open access: yes, 2023
Auxetics are materials characterized by a negative Poisson’s ratio (NPR), an uncommon mechanical behavior corresponding to a transversal deformation tendency opposite to the traditional materials.
Roberto, Brighenti   +7 more
core   +1 more source

Computational simulation of fracture behaviour in auxetic cellular structure by multiaxial loading [PDF]

open access: yesMATEC Web of Conferences, 2019
A computational simulation of fracture behaviour in auxetic cellular structure, subjected to multiaxial loading is presented in this paper. A fracture behaviour of the 3D (three-dimensional) chiral auxetic structure under multiaxial loading conditions ...
Nečemer Branko   +3 more
doaj   +1 more source

Capability of auxetic femoral stems to reduce stress shielding after total hip arthroplasty

open access: yesJournal of Orthopaedic Translation, 2023
Background: Stress shielding ​(SS) is considered the main mechanical cause of femoral stem loosening after total hip arthroplasty (THA). This study introduces an auxetic lattice femoral stem structure with negative Poisson's ratio that can expand ...
Bolun Liu   +7 more
doaj   +1 more source

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